DAELIM B-BONE, Service Manual

Page: 141 / 246

10-1
10. CYLINDER HEAD / VALVES
SERVICE INFORMATION
GENERAL SAFETY
●
The rocker arm and the camshaft can be serviced without removing the engine. However, the engine must be removed
from the frame to maintain the cylinder head.
●
The oil of camshaft oil is supplied through the cylinder head oil hole. Clean the oil hole prior to assembling the cylinder
head.
SPECIFICATIONS
10
SERVICE INFORMATION
··
10-1
TROUBLESHOOTING
····
10-2
CAMSHAFT
········
10-3
CYLINDER HEAD
·····
10-5
VALVE SPRINGS
······
10-6
VALVES
·········
10-6
VALVE GUIDES
······
10-7
VALVE SEATS
······
10-8
CYLINDER HEAD ASSEMBLY
·
10-12
CAMSHAFT ASSEMBLY
···
10-13
TORQUE VALUES
CAM CHAIN TENSIONER PIVOT BOLT 1.0 kgf
·
m
SPARK PLUG 1.2 kgf · m
CAMSHAFT HOLDER 8mm NUT 2.0 kgf
·
m
CAM CHAIN TENSIONER MOUNTING BOLT 1.2 kgf
·
m
CAM CHAIN TENSIONER SEALING SCREW 0.4 kgf
·
m
CYLINDER HEAD COVER BOLT 0.9kgf · m
CYLINDER HEAD BOLT 1.1 kgf
·
m
TAPPET ADJUST NUT 0.8 kgf
·
m
ITEM STANDARD VALUE SERVICE LIMIT
Unit : mm
ROCKER ARM
CAM HEIGHT
VALVE STEM OUTER DIAMETER
VALVE SPRING FREE LENGTH
CLEARANCE BETWEEN
STEM AND GUIDE
CAMSHAFT
VALVE
VALVE GUIDE
ROCKER ARM INNER DIAMETER 12.016 - 12.034 12.060
ROCKER ARM SHAFT OUTER DIAMETER 11.982 - 12.000 11.950
IN 33.835 - 33.995 33.625
EX 33.984 - 34.144 33.765
IN 37.21 36.90
EX 37.21 36.90
IN 4.972 - 4.984 4.920
EX 4.952 - 4.964 4.900
VALVE GUIDE INNER DIAMETER IN,EX 5.000 - 5.012 5.030
IN 0.016 - 0.040 0.090
EX 0.036 - 0.060 0.120
VALVE SEAT WIDTH 0.8 - 1.0 1.4
CYLINDER HEAD WARPAGE - -
CYLINDER HEAD / VALVES